Plot: The episode opens with the family at a dinner celebrating Lois' birthday; the family gives her mediocre gifts. To their displeasure, Brian gives Lois a pair of tickets for a cruise, which she assumes are for her and Peter (Brian, of course, intended otherwise). Lois and Peter take the trip alone, not even taking Stewie. This greatly upsets Stewie and, as soon as he returns home, he begins to plot a diabolical plan to humiliate Lois out of revenge for leaving him behind, which he intends to carry out as soon as Lois returns. Brian scoffs, noting that Stewie has never followed through with any of his diabolical plans before, and is completely skeptical that he will do so this time. Stewie realizes that Brian is right, so he decides to take immediate action to rectify the problem.